<i>At the Edge of the World</i> documents the work of the Sea Shepherd Conservation Society, a group of activists who aren't afraid to get physical while battling Japanese whalers.

At the Edge of the World follows a group of environmental activists from the Sea Shepherd Conservation Society who take to the oceans off Antarctica and literally save the whales.

Every year Japanese whaling ships cruise around Southern Ocean, killing hundreds of whales in the name of "scientific research" (in reality, most of the meat and blubber ends up on the market). The Sea Shepherd has two ships that make it their mission to disrupt and harass the Japanese whalers using what some might call extreme measures — bumping ship to ship (and these are big boats, hundreds of feet long), shooting tear gas and smoke bombs, and tangling their propellers with long ropes.

It's extreme, to say the least.

But at the same time, they've saved hundreds of whales from painful, bloody deaths.

What do you think? Do the ends justify the means when it comes to whaling?